| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a digital signal processing device having an A/D converter which implements a high speed operation.SOLUTION: The digital signal processing device provided includes: a noise shaping section for noise-shaping a quantization error component attributable to quantization of a digital signal; an addition/subtraction section for performing an additive/subtractive operation on a noise shaping signal output from the noise shaping section and the digital signal; and a quantizer for quantizing a signal from the additive/subtractive operation. The noise shaping section performs noise shaping on every bit number smaller than a bit number of the quantization error component.</p> |
